Colour never plays a part in choosing fish for me, fish behaviour is what attracts me most and seconded by rarity in the hobby. A lot of my fish are the drab browns, greens and greys assosiated with predatory fish which would not appeal to fish keepers who are more familiar with brightly coloured community fish and Cichlids. That said i do keep a few fish with stunning colouration such as my jardini arowana, peacock bass and dwarf snakeheads, but the fact they are colourfull is just a lucky coincidense.